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Title: Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4977026· OSTI ID:1414131

Oxygen content in transition metal oxides is one of the most important parameters to control for the desired physical properties. Recently, we have systematically studied the oxygen content and property relationship of the double perovskite PrBaCo2O5.5+δ (PBCO) thin films deposited on the LaAlO3 substrates. The oxygen content in the films was varied by in-situ annealing in a nitrogen, oxygen, or ozone environment. Associated with the oxygen content, the out-of-plane lattice parameter progressively decreases with increasing oxygen content in the films. The saturated magnetization shows a drastic increase and resistivity is significantly reduced in the ozone annealed samples, indicating the strong coupling between physical properties and oxygen content. Furthermore, these results demonstrate that the magnetic properties of PBCO films are highly dependent on the oxygen contents, or the film with higher oxygen uptake has the largest magnetization.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1414131
Alternate ID(s):
OSTI ID: 1348270
Report Number(s):
LA-UR-16-27359; APPLAB; TRN: US1800656
Journal Information:
Applied Physics Letters, Vol. 110, Issue 9; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Cited By (3)

Reduced Transition Temperature in Al:ZnO/VO2 Based Multi-Layered Device for low Powered Smart Window Application journal February 2020
Room temperature crystal structure and high temperature structural and magnetic phase transitions in Sr(Fe 0.5 Nb 0.5 )O 3 ceramic journal May 2019
Giant positive magnetoresistance in half-metallic double-perovskite Sr 2 CrWO 6 thin films journal November 2017

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